1 //===-- llvm/MC/MCCodeEmitter.h - Instruction Encoding ----------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef LLVM_MC_MCCODEEMITTER_H 11 #define LLVM_MC_MCCODEEMITTER_H 12 13 #include "llvm/Support/Compiler.h" 14 15 namespace llvm { 16 class MCFixup; 17 class MCInst; 18 class raw_ostream; 19 template<typename T> class SmallVectorImpl; 20 21 /// MCCodeEmitter - Generic instruction encoding interface. 22 class MCCodeEmitter { 23 private: 24 MCCodeEmitter(const MCCodeEmitter &) LLVM_DELETED_FUNCTION; 25 void operator=(const MCCodeEmitter &) LLVM_DELETED_FUNCTION; 26 protected: // Can only create subclasses. 27 MCCodeEmitter(); 28 29 public: 30 virtual ~MCCodeEmitter(); 31 32 /// Lifetime management reset()33 virtual void reset() { } 34 35 /// EncodeInstruction - Encode the given \p Inst to bytes on the output 36 /// stream \p OS. 37 virtual void EncodeInstruction(const MCInst &Inst, raw_ostream &OS, 38 SmallVectorImpl<MCFixup> &Fixups) const = 0; 39 }; 40 41 } // End llvm namespace 42 43 #endif 44